SDLC Big Bang Model

Some other SDLC models do not follow any specific phases and procedures. There are models where development starts with the necessary money as well as efforts /workforce as the input, and the software product which may or may not be based on the client's requirement as the output. This Big Bang Model is one of such software development model which does not follow any specific protocol, and so the need for planning is the least. When the client is not sure about the requirements and needs for developing the project entirely or implementation has to be done on the fly with the least analysis, Big Bang Model came into the picture. In this chapter, you will learn about the Big Bang SDLC model in details.

The Big Bang SDLC Model

The Big Bang Model is popular in situations or adopted in cases where the stakeholders or customer of the project are not certain regarding their wants as well as requirements and they also haven't analyzed all the necessary features and characteristics that they are planning to incorporate in their system. In this model, all or most of the requirements are understood as well as put into practice as they begin development of the first prototype.

The primary target lingers in writing code as well as delivering the ultimate product to the customers. Since this model holds no planning or analysis, so, this model involves a tremendous amount of risks than that of other SDLC models. Though this model is moderately too simple to implement but still there lays an imbalance in developing a product without proper analysis. Big Bang SDLC model accentuates testing of every module as soon as they are prepared & ready to integrate. These modules are then integrated and tested by executing the entire product for checking if there is any occurrence of bug within the system. Big Bang model can be phase out into the following points:

  • In this development model, modules get integrated as all the individual modules are entirely built and are not integrated separately or individually.
  • Each module is tested independently to look for bugs or defects.
  • In case there is any bug or error in any module, the module is disintegrated, and the root cause of the problem is identified.

Implementation and Requirement of Big Bang Model

This model is perfect and suitable if the software development project is a small one where 2 to 3 developers are working together to build a system or just as a dummy project. The model is also suitable if all the requirements are not appropriately understood as well as the deadline for release of the system is not declared.

Benefits of Using Big Bang Model

  • This is quite a simple model.
  • Implementing this model makes managing tasks easier.
  • It required zero planning.
  • Developers have huge flexibility in developing the entire product.
  • Resources necessary for developing the product is only a few.

Drawbacks of Using Big Bang Model

  • This model is not appropriate for big or complex projects.
  • Very meager model for building long and constant projects.
  • Holds very high risk with uncertainty.